Jorijn van der Graaf
823c710b15
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0.2.3's manifest pinned the sha256 of one Android build's focal64 (16.82.0, the build the dev phone runs). Fairphone re-signs the trustlet every release, so that pin matched exactly one of the six builds seen, and two of two field reports had no sensor: one user on 16.100.0 edited the manifest by hand, another ended up with a file QTEE refuses. The manifest now carries '-' instead of a hash and depends on fp6-vendor-blobs 1-r3, which tries the active slot first and verifies the image's structure; QTEE's signature check is the gate it always was (one flipped byte -> ERROR_ELF_SIGNATURE_ERROR, measured 2026-09-03 and again today). post-install reassembles the trustlet right away, so 'apk add' no longer needs a boot for it. post-upgrade re-derives it from the active slot, which replaces a hand-placed or wrongly pinned file, and then restarts the daemon -- a plain restart, so a daemon that exited on a refused trustlet comes back up on the re-derived one. loadFromBuffer failures name the loader's verdict. The field's first report was a bare result=12; it now reads ERROR_ELF_SIGNATURE_ERROR with what to do about it. Probed on the phone with this build: a one-byte tampered image and 100000 random bytes both print it, the pristine image loads, and the suites pass 8/8.
16 lines
840 B
Shell
Executable file
16 lines
840 B
Shell
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-3.0-only
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# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
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#
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# The trustlet is not in this package: fp6-vendor-blobs reassembles it from
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# the phone's own modem partition (packaging/20-focal64.manifest). On an
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# image's first boot its unit does that before udev; on a phone that is
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# already running, do it now, so a fresh 'apk add fingerprintd' does not wait
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# for a boot to have a sensor. --if-device makes this a quiet no-op inside
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# build/CI chroots; --refresh re-derives the file from the active slot even if
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# one is present, and never removes a file it cannot replace.
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#
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# The daemon itself starts at the next boot: its unit, module load and
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# tmpfiles arrive with the -systemd subpackage, after this script has run.
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/usr/lib/fp6-vendor-blobs/extract --if-device --refresh || :
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exit 0
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